Year | Value | 2023 | 364,858 | 2022 | 354,215 | 2021 | 343,887 | 2020 | 330,500 | 2019 | 316,381 | 2018 | 305,177 | 2017 | 298,524 | 2016 | 294,897 | 2015 | 294,906 | 2014 | 297,487 | 2013 | 302,210 | 2012 | 306,495 | 2011 | 308,741 | 2010 | 310,301 | 2009 | 311,573 | 2008 | 310,278 | 2007 | 310,028 | 2006 | 314,116 | 2005 | 317,787 | 2004 | 319,217 | 2003 | 316,388 | 2002 | 308,918 | 2001 | 296,119 | 2000 | 277,466 | 1999 | 256,858 | 1998 | 235,544 | 1997 | 216,104 | 1996 | 201,577 | 1995 | 189,602 | 1994 | 178,889 | 1993 | 169,568 | 1992 | 160,672 | 1991 | 148,953 | 1990 | 133,206 | 1989 | 116,407 | 1988 | 101,216 | 1987 | 89,558 | 1986 | 86,904 | 1985 | 96,144 | 1984 | 113,583 | 1983 | 136,353 | 1982 | 159,222 | 1981 | 175,671 | 1980 | 185,120 | 1979 | 188,417 | 1978 | 184,456 | 1977 | 175,819 | 1976 | 167,099 | 1975 | 159,035 | 1974 | 154,148 |
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